US 12,360,066 B2
Communication method and apparatus using a backscatter signal pattern
Mao Yan, Chengdu (CN); Kuandong Gao, Chengdu (CN); Huang Huang, Shenzhen (CN); and Huajiong Lin, Chengdu (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Aug. 19, 2022, as Appl. No. 17/891,716.
Application 17/891,716 is a continuation of application No. PCT/CN2020/141645, filed on Dec. 30, 2020.
Claims priority of application No. 202010124344.9 (CN), filed on Feb. 27, 2020.
Prior Publication US 2022/0390393 A1, Dec. 8, 2022
Int. Cl. G01N 23/203 (2006.01); H04L 7/033 (2006.01); H04L 27/144 (2006.01)
CPC G01N 23/203 (2013.01) [H04L 7/033 (2013.01); H04L 27/144 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
one or more processors; and
a memory having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to:
receive an excitation signal from an exciter;
select a backscatter signal pattern in a backscatter signal pattern set based on backscatter signal indication information received from the exciter, wherein the backscatter signal indication information indicates the backscatter signal pattern to be selected in the backscatter signal pattern set, wherein the backscatter signal pattern set comprises a plurality of backscatter signal patterns, and backscatter reference signals in the plurality of backscatter signal patterns do not overlap in time domain, and wherein the backscatter signal pattern set comprises a first backscatter signal pattern and a second backscatter signal pattern, the first backscatter signal pattern has a first ratio between a time of a first backscatter reference signal and a first backscatter data signal, the second backscatter signal pattern has a second ratio between a time of a second backscatter reference signal and a second backscatter data signal, and the first ratio is different from the second ratio;
modulate a backscatter reference signal and a backscatter data signal on the excitation signal based on the selected backscatter signal pattern, to obtain a backscatter signal; and
send the backscatter signal to a receiver.